Andrea Di Biagio 9b6992ddc2 [X86] Add target combine rules for horizontal add/sub. ... This patch adds new target specific combine rules to identify horizontal add/sub idioms from BUILD_VECTOR dag nodes. This patch also teaches the DAGCombiner how to canonicalize sequences of insert_vector_elt dag nodes according to the following rule: (insert_vector_elt (insert_vector_elt A, I0), I1) -> (insert_vecto_elt (insert_vector_elt A, I1), I0) This new canonicalization rule only triggers if the inner insert_vector dag node has exactly one use; also, both indices must be known constants, and I1 < I0. This last rule made it possible to write a simpler algorithm to identify horizontal add/sub patterns because now we don't have to worry about the ordering of insert_vector_elt dag nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210477 91177308-0d34-0410-b5e6-96231b3b80d8		2014-06-09 16:54:41 +00:00
..
Analysis	ScalarEvolution: Derive element size from the type of the loaded element	2014-06-08 19:21:20 +00:00
AsmParser	Allow aliases to be unnamed_addr.	2014-06-06 01:20:28 +00:00
Bitcode	Allow aliases to be unnamed_addr.	2014-06-06 01:20:28 +00:00
CodeGen	[X86] Add target combine rules for horizontal add/sub.	2014-06-09 16:54:41 +00:00
DebugInfo	[modules] Add module maps for LLVM. These are not quite ready for prime-time	2014-05-21 02:46:14 +00:00
ExecutionEngine	Add a Constant version of stripPointerCasts.	2014-06-04 19:01:48 +00:00
IR	InstCombine: Canonicalize addrspacecast between different element types	2014-06-06 21:52:55 +00:00
IRReader	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 06:32:26 +00:00
LineEditor	[CMake] Use LINK_LIBS instead of target_link_libraries().	2014-02-26 06:41:29 +00:00
Linker	Allow aliases to be unnamed_addr.	2014-06-06 01:20:28 +00:00
LTO	Build fix: remove initializeJumpInstrTablesPass() call from LTO	2014-06-07 20:39:53 +00:00
MC	Fix gcc warning (enumeral and non-enumeral type in conditional expression)	2014-06-09 07:35:07 +00:00
Object	[yaml2obj][obj2yaml] Support ELF symbol's visibility flags (default/hidden/protected).	2014-06-06 07:41:57 +00:00
Option	Options: Use erase_if to remove Args from the list.	2014-05-18 15:14:13 +00:00
ProfileData	Use an enum class.	2014-06-03 05:12:33 +00:00
Support	APFloat: x - NaN needs to flip the signbit of NaN when x is a number.	2014-06-08 16:53:31 +00:00
TableGen	Fix typos in tablegen error messages	2014-05-31 05:18:52 +00:00
Target	[X86] Add target combine rules for horizontal add/sub.	2014-06-09 16:54:41 +00:00
Transforms	[msan] Workaround for invalid origins in shufflevector.	2014-06-09 14:29:34 +00:00
CMakeLists.txt	ProfileData: Introduce the InstrProfReader interface and a text reader	2014-03-21 17:24:48 +00:00
LLVMBuild.txt	ProfileData: Introduce the InstrProfReader interface and a text reader	2014-03-21 17:24:48 +00:00
Makefile	ProfileData: Introduce the InstrProfReader interface and a text reader	2014-03-21 17:24:48 +00:00